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Service bulletins for the 2021 Lincoln Aviator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

271 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
SSM 496852021-03-31. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 Aviator and Explorer vehicles built on and before 24-Feb-2021 may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs) P07E4, B135C and/or U0103. This may be due to a loose ground G210 and/or G214. Check grounds G210 and G214, refer to the Wiring Diagram for location information. If the concern persists, or the grounds are found to be secure, refer to the Workshop Manual and applicable sections of the Powertrain Controls/Emissions Diagnosis (PC/ED) Manual for normal diagnostics.
SSM 496692021-03-31. Service bulletin. POWER TRAIN. 2020-2021 Explorer/Aviator vehicles equipped with all-wheel drive (AWD) may exhibit an illuminated AWD indicator with diagnostic trouble code (DTC) C00A6:07, C00A6:18, C00A6:19, C00A6:4B, C00A6:66, C00A6:71, C00A6:74, and/or C00A6:99. It may not be necessary to replace the transfer case clutch actuator. Follow the updated transfer case clutch actuator Pinpoint Tests in the Workshop Manual (WSM), Section 308-07A for 2020 vehicles and Section 307-07A for 2021 vehicles.
SSM 496422021-03-31. Service bulletin. POWER TRAIN. Some 2020-2021 Explorer/Aviator vehicles equipped with an 10R60 automatic transmission may exhibit diagnostic trouble code (DTC) P27B2 stored in the powertrain control module (PCM) memory. This DTC may be present due to activation of the transmission park by wire manual release during vehicle assembly and has not yet achieved the 40 warm up cycles needed to be cleared from memory. Before attempting a repair for this DTC, clear the DTC and if it returns, refer to the WSM, Section 307-01 for normal diagnostics. For claiming, use causal part 12A650 and applicable labor times in section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 496182021-03-03. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Some 2018-2021 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with DTC P025A And/Or DTC U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs or loose/corroded grounds. Inspect FPCM connector, applicable grounds(F-150- G401, Expedition/Navigator- G403, Transit- G401, 2018-2019 Explorer G302, 2020-2021 Explorer/Aviator- G407) and confirm FPCM connector (F-150- C4336, Expedition/Navigator- C433, Transit- C433, 2018-2019 Explorer C3239, 2020-2021 Explorer/Aviator- C4033) is fully seated prior to performing PC/ED diagnostics or replacing any components.
SSM 495822021-03-03. Service bulletin. POWER TRAIN. Some 2021 F-150/Explorer/Aviator/Police Interceptor Utility vehicles, excluding hybrid, with 5,000 miles (8,000 km) or less may exhibit harsh or delayed engagement/shift concerns with or without transmission diagnostic trouble codes (DTC) in the powertrain control module (PCM). Most concerns at low mileage may be addressed with the accelerated main control break-in routine. Refer to Workshop Manual (WSM) Section 307-01 Diagnosis and Testing, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive drive cycle before attempting internal service. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards (SLTS) Manual.
SSM 495802021-03-03. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles may exhibit various electrical concerns due to an open 3 or 4 post fuse array on the high current battery junction box (BJB). Service part LU5Z-14526-ALD has been released for the 3 post fuse array and LU5Z-14526-ANC has been released for the 4 post fuse array. It is no longer necessary to order the complete wiring harness to obtain these parts.
TSB 21-20302021-03-02. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles built on or before 24-Dec-2020 may exhibit an illuminated anti-lock brake system (ABS) warning indicator lamp with diagnostic trouble code (DTC) C0020 stored in the ABS module. It may not be necessary to replace the ABS module/hydraulic control unit (HCU) to resolve DTC C0020. This may be due to a poor ground connection and/or improper plating on the attachment bolts at G108. To correct the condition, follow the Service Procedure to replace and properly tighten the ground cable fasteners.
SSM 495072021-02-04. Service bulletin. POWER TRAIN. Some 2021 F-150/Explorer/Aviator/Police Interceptor Utility vehicles, excluding hybrid, with 5,000 miles (8,000 km) or less may exhibit harsh or delayed engagement/shift concerns with or without transmission diagnostic trouble codes (DTC) in the powertrain control module (PCM). Most concerns at low mileage may be addressed with the accelerated main control break-in routine. Refer to Workshop Manual (WSM) Section 307-01 Diagnosis and Testing, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves, and must be performed before attempting internal service. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards (SLTS) Manual.
SSM 494842021-02-04. Service bulletin. EQUIPMENT. Some 2021 F-150/Transit/Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
SSM 494492021-02-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost engine may appear to have low engine oil level if the proper procedures are not followed. Refer to the Owners Guide, Maintenance, Engine oil check section. When checking the engine oil level after shutting off the engine wait at least 15 minutes prior to checking in order to allow the oil to drain back to the oil pan. The engine oil level can be checked immediately if the engine has not been started. When changing the engine oil the engine needs to be at normal operating temperature and the oil filter removed before draining the oil. Allow the oil pan to drain completely for up to 5 minutes. Check oil level after filling by following the oil level check procedure.
SSM 494382021-02-04. Service bulletin. SEATS; ELECTRICAL SYSTEM:SOFTWARE. Some 2020-2021 Explorer/Aviator vehicles equipped with 3rd row power seats may exhibit inoperative 3rd row power seat folding with diagnostic trouble codes (DTCs) B1231:54 and/or B1232:54 stored in the power fold seat module (SCMJ). This may be due to the software in the SCMJ. To correct the condition, connect a battery charger and reprogram the SCMJ using the latest software level of the appropriate Ford diagnostic scan tool. Then open the liftgate, and perform the SCMJ - Power Fold Seat Module (SCMJ) Learn Seat Procedure. For claiming, use causal part 14F042 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 494372021-02-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:BRAKING. Some 2020-2021 Explorer/Aviator vehicles built on or before 07-Dec-2020 may falsely store diagnostic trouble codes (DTCs) U0415 and/or U3000:42 in the image processing module B (IPMB). These DTCs may be associated with camera display issues or a Reverse Brake Assist Unavailable fault message. To correct the condition, reprogram the IPMB using the latest software level of the appropriate Ford diagnostic scan tool. For claiming, use causal part 19H405 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 494332021-02-04. Service bulletin. EQUIPMENT; WHEELS; SERVICE BRAKES. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles may exhibit an illuminated anti-lock brake system (ABS) warning lamp with diagnostic trouble codes (DTCs) C0031, C0034, C0037, and/or C003A. This may be due to metal contamination on the wheel speed sensors or wheel speed sensor rings. Verify that all wheel speed sensors and wheel speed sensor rings are free of metal contamination before replacing them. Refer to Workshop Manual (WSM), Section 206-09 for diagnostics.
SSM 494092021-01-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Some 2020-2021 Aviator vehicles equipped with a 360 degree view camera system and built on or before 07-Dec-2020 may exhibit an intermittent blank or blue screen when placed into reverse but return to normal when placed into drive. This condition may be more noticeable during cool or colder temperatures. To correct the condition, reprogram the image processing module B (IPMB) using the latest software version of the appropriate Ford scan tool. For claiming, use causal part 19H405 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 20-24252021-01-05. Service bulletin. EQUIPMENT. Some 2020-2021 Explorer/Aviator vehicle may exhibit a water leak in the rear liftgate area and/or exhibit water in the spare tire area. To correct the condition, follow the Service Procedure steps to identify the leak path.
SSM 494052021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Some 2020-2021 Aviator and 2021 Corsair hybrid vehicles may exhibit various concerns with the Lincoln Dual TurboCord. For diagnostic assistance, contact Webasto Charging Systems, Inc. directly at 888-219-6747 or at evscs@webasto.com.
SSM 493882021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; POWER TRAIN; ELECTRICAL SYSTEM. 2021 F-150/Explorer/Aviator/Police Interceptor Utility vehicles without a diesel engine and/or without a 10R80 MHT transmission have a new PCM-Transmission Accelerated Main Control Break In routine added to the Diagnosis and Testing Section of the WSM. This new routine uses the Ford diagnostic scan tool to cycle the shift solenoids and clutch control valves to free them from contamination that may be sticking the valves. Refer to WSM, Section 307-01.
SSM 493802021-01-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Some 2021 F-150/Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
SSM 493772021-01-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost engine and built on or before 01-Dec-2020 may exhibit inoperative air conditioning, an illuminated malfunction indicator lamp, and/or an illuminated powertrain malfunction (wrench) indicator with various diagnostic trouble codes present and a blown fuse F14. This may be due to wiring harness 14290 chaffing on the A/C compressor pulley. If chaffing is present, repair as necessary. Refer to Wiring Diagram, Cell 005 for repair procedures. Make sure that the wiring harness retainer is fully seated in the back side of the bracket on the A/C compressor to keep the harness away from the compressor pulley.
SSM 493292020-12-04. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE. Some 2020-2021 Aviator and Explorer vehicles may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs) P07E4, B135C and/or U0103. This may be due to a loose ground G210 and/or G214. Check grounds G210 and G214, refer to the Wiring Diagram for location information. If the concern persists, or the grounds are found to be secure, refer to the Workshop Manual and applicable sections of the Powertrain Controls/Emissions Diagnosis (PC/ED) Manual for normal diagnostics.
SSM 492692020-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2021 Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.